W1 Watches prides itself in replacing watch batteries quickly and efficiently. Only Swiss replacement batteries are used for your fine timepiece. We provide a free pressure testing service for all water resistant watches. We guarantee water resistance and if new seals are required they will be fitted as well. Our battery replacements are guaranteed for 12 months.For more contact us at 020 7734 4799 or visit us at 29 Frith Street, London, W1D 5LG